Question

12-1. A car starts from rest and with constant acceleration achieves a velocity of 15 m/s when it travels a distance of 200 m. Determine the acceleration of the car and the time required

Answer 1

So we have u= 0m/s, v=15m/s, s= 200m

So,

2as= v^2-u^2

A= V^2 - U^2/2s

= 225/400

=0.5625 m/s^2

V=u+a*(t^2)

15=0+0.5625(t^2)

15-0.5625= t^2

=14.4375=t^2

root14.4375= root(t)

Time= 3.7996710383926659079171860515099 seconds

So I hope you understand it and if there is any mistake please correct it.

Answer 2

Answer:

a = 0.5625 m/s^2

t = 26.67 s

Explanation: